1) Pulse massage. 2) Low laser (two-speed continuous/intermittent mode). 3) Adjustable intensity. 4) Repeatedly rechargeable lithium battery. 5) Conductive sheet with mirror surface, large area reflux, no numb feeling. 6) Power display on LCD screen, high-end atmosphere. Working voltage: DC 3.7V Power adapter: 5V/1A Intensity: 1-9 levels CONTRAINDICATIONS: 1) Cannot be used simultaneously with electronic medical devices, such as implanted electronic devices, artificial heart, and lungs. 2) Pregnant women, those experiencing an acute menstrual period, and those with skin abnormalities are prohibited from using the product. 3) Do not use if skin is damaged or scarred. 4) Do not irradiate the eyes. ABS, metal alloy.